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11 <br /> TABLE 1 <br /> (, CUMULATIVE RESULTS OF GROUNDWATER SAMPLING AND ANALYSES <br /> " QUIK STOP MARKET NO.132 <br /> 2555 WEST HAMMER LANE <br /> 1 STOCKTON,CALIFORNIA <br /> Ethyl- Total Well Depth to Groundwater <br /> ' Date TPH-G Benzene Toluene benzene Xylenes MTBE CO2 Elevation Groundwater Elevation <br /> Sampled (ug/L) (ug1L) (ug1L) (ug/L) (ug/L) (ug/L) (mg1L) (R above MSL) (feet) (ft above MSL) <br /> Well MW-2 <br /> 09/14/90 <50 1 <0.so 2.7 5,3 3.29 14.92 -11.63 <br /> 04/08/91 <50 <0.50 <0.50 <0.50 <0.50 14 -10.71 <br /> 07/31/91 <50 <0.50 <0.50 <0.50 <0.50 15.1 -11.81 <br /> 09/11/91 <50 <0.50 <0.50 <0.50 <0.50 15.32 -12.03 <br /> 12/38/91 <50 <0.50 <0.50 <0.50 <0.50 15.46 -12.17 <br /> 03/18/92 <.50 0,6 1 <0.50 1.4 14.53 -11.24 <br /> 06/16/92 <$0 <0.50 40.50 <0.50 <0.50 14.96 -11.67 <br /> 09/22/92 <50 0.7 1.5 40.50 <0.50 18.06 -14.77 <br /> 1221192 <50 0,6 3.1 <0 So <br /> <0.50 16.24 -12.95 <br /> 03/17/93 <50 <0.50 0.7 <0.50 <0.50 12.69 -9.4 <br /> OW18/93 <50 <0.50 <0.50 <0.50 <0.50 11.97 -8.68 <br /> 09!23193 <50 <0.50 <0.50 <0.50 <0.50 13.25 -9.96 <br /> ' 12/17/93 <50 <0.50 <0.50 <0.50 <0.50 13.08 -9,79 <br /> 0325/94 <50 <0.50 <0.50 <0.50 <0 50 12.7 -9.41 <br /> 0621/94 <50 <0.50 <0.50 <0.50 <0.50 12.6 -9.31 <br /> 09/13/94 <50 <0.50 <0,50 <0.50 <0,50 12.95 -9.66 <br /> l� 12/09/94 <50 <050 <0.50 a0.50 <0,50 13.55 -1016 <br /> (` 03/16/95 350 5.9 14 16 79 13.18 -7.89 <br /> 06/22/95 <50 <0.50 <0.50 <0.50 <0.50 1 i_is -7.89 <br /> 0926195 <50 <0.50 <0.50 <0.50 <0.50 480 1221 -8.92 <br /> '1 12/21/95 <50 <0.50 <0.50 <0.50 <0.50 Soo 12.07 -8.76 <br /> 03/06/96 <50 <0.50 <0.50 <0.50 <0.50 6.4 460 10.6 -7.31 <br /> 06104!96 <So <0.50 <0.50 <0.50 <0,50 42.5 NR 10.15 -6.86 <br /> 09/17/96 NR NR NR NR NR NR NR 11.1 -7.81 <br /> 12/09/96 NR NR NR NR NR NR NR 11.15 -7.86 <br /> 02/11/97 NR NR NR NR NR NR NR 8.62 -5.33 <br /> 06/09/97 NR NR NR NR NR NR NR NA NA <br /> 09/03/97 NR NR NR NR NR NR NR 1014 -6,95 <br /> 12/04/97 NR NR NR NR NR NR NR 10,64 -735 <br /> 03/10/98 NR NR NR NR NR NR NR 6.86 -3.57 <br /> 06108198 <50 <0.5 <0.5 <05 <0,5 6,600 NR 7.71 -4.42 <br /> 0922!98 290 0.57 40.5 <0.5 <0.5 18,000 NR 9.16 •5.87 <br /> 12/03/98 270 <0.5 <0.5 40.5 <0.5 24,000 NR 9.39 -6.10 <br /> 03/17199 340 <05 <0.5 <0.5 <0.5 21,100 NR 8.74 -5.4S <br /> 06/07!99 18,000 <too <100 <]00 <100 8,400 NR 8.31 -5.02 <br /> 09/02/99 2,100 8.6 X2.5 <2.5 <2.5 11,000 NR 9.47 -6,18 <br /> 12/09/99 8,200 <50 <50 <50 <50 11,000 NR 318 9.91 -6,63 <br /> 03/27/00 <5 000 <50 <50 <50 <50 7,100 NR 7.26 -3.98 <br /> 06115!00 1,400 <12.5 <12.5 <12.5 <12.5 5,500 NR 8.06 -4.8 <br /> 09/18/00 3,700 25 <10 <10 <10 3,000 NR 9.31 -6,03 <br /> 11/30/00 1,600 18 8.5 5 5 <25 2,600 NR 9.71 -6,43 <br /> 02123/01 2,700 <25 <25 <25 <25 4,900 NR 9.61 -6,33 <br /> 05/22/01 1,200 <to <10 <10 <10 2,400 NR 8.80 -5.52 <br /> 08/23/01 2,300 20 <t2.5 <12.5 <12.5 1,700 NR 9.69 -6,41 <br /> 11/30/01 <500 <10 <10 I <10 <to 1,500 NR 10.47 -7.19 <br /> `I 1 <br /> n <br /> l'In IR�reuu[]u'l tiap In?]o]l 174'Il]Irc%f 11:TWIa�nuiW-risr Mininnne T.61n�I�Il,akriv1 Page 2 of 8 <br />